Dear All; I admit to scanning a lot of the comments on this subject not seeing anything specifically on hardiness. Some of the comments from cold climate gardeners suggested these are all pot grown, not outdoors in the ground. Does anyone successfully grow any tuberous Pelargonium outdoors in the ground in Zone 6 or colder? I have Geranium tuberosum and lineare (?) and a selection from Ruksans. They do well in a variety of sites. Appreciate experiences. Jim W. -- Dr. James W. Waddick 8871 NW Brostrom Rd. Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 E-fax 419-781-8594 Zone 5 Record low -23F Summer 100F +